Wireless Communication Method and Device

1. A wireless communication method, comprising: determining a target path loss value for a Sounding Reference Signal (SRS) resource in a SRS resource set according to a first uplink signal, a first downlink signal, a first beam, or a first beam pair link corresponding to the SRS resource set; determining a target transmission power for the SRS resource in the SRS resource set according to the target path loss value; and transmitting an SRS to a network device on the SRS resource in the SRS resource set according to the target transmission power.

2. The method according to claim 1 , wherein the determining the target path loss value for the SRS resource in the SRS resource set comprises: determining a same target path loss value for the SRS resources in the SRS resource set.

3. The method according to claim 1 , wherein the determining the target path loss value for the Sounding Reference Signal (SRS) resource in the SRS resource set according to the first uplink signal, the first downlink signal, the first beam, or the first beam pair link corresponding to the SRS resource set comprises: determining the target path loss value for the SRS resource in the SRS resource set according to the same first uplink signal, the first downlink signal, the first beam, or the first beam pair link.

4. The method according to claim 3 , wherein a number of the same first uplink signal, the first downlink signal, the first beam, or the first beam pair link is 1.

5. The method according to claim 1 , wherein the determining the target transmission power for the SRS resource in the SRS resource set comprises: determining a same target transmission power for the SRS resources in the SRS resource set.

6. The method according to claim 1 , wherein before determining the target path loss value for the Sounding Reference Signal (SRS) resource in the SRS resource set according to the first uplink signal, the first downlink signal, the first beam, or the first beam pair link corresponding to the SRS resource set, the method further comprises: receiving first indication information of the network device, wherein the first indication information is used to indicate the first uplink signal corresponding to the SRS resource set, the first downlink signal corresponding to the SRS resource set, the first beam corresponding to the SRS resource set, or the first beam pair link corresponding to the SRS resource set, or is used to indicate a resource for carrying the first uplink signal, a resource for carrying the first downlink signal, or a resource for receiving or transmitting a signal by using the first beam or the first beam pair link.

7. The method according to claim 1 , wherein before determining the target path loss value for the Sounding Reference Signal (SRS) resource in the SRS resource set according to the first uplink signal, the first downlink signal, the first beam, or the first beam pair link corresponding to the SRS resource set, the method further comprises: determining the first uplink signal, the first downlink signal, the first beam, or the first beam pair link corresponding to the SRS resource set according to a first preset relationship.

8. The method according to claim 1 , wherein the determining the target path loss value for the Sounding Reference Signal (SRS) resource in the SRS resource set according to the first uplink signal, the first downlink signal, the first beam, or the first beam pair link corresponding to the SRS resource set comprises: determining a path loss value used for calculating a transmission power of the first uplink signal as the target path loss value.

9. The method according to claim 1 , wherein the determining the target path loss value for the Sounding Reference Signal (SRS) resource in the SRS resource set according to the first uplink signal, the first downlink signal, the first beam, or the first beam pair link corresponding to the SRS resource set comprises: determining the target path loss value by performing a downlink path loss estimation based on the first uplink signal, the first beam, or a second downlink signal associated with the first beam pair link.

10. The method according to claim 9 , wherein before the determining the target path loss value by performing the downlink path loss estimation based on the second downlink signal associated with the first uplink signal, the first beam, or the first beam pair link, the method further comprises: receiving second indication information transmitted by the network device, wherein the second indication information is used to indicate an association relationship between the second downlink signal and one of following: the first uplink signal, the first beam, or the first beam.

11. The method according to claim 1 , wherein the first downlink signal comprises one of following: a CSI-RS, a synchronization signal, a synchronization signal block, a time-frequency Tracking Reference Signal (TRS), a Phase Tracking Reference Signal (PTRS), a Physical Downlink Shared Channel (PDSCH), a Physical Downlink Control Channel (PDCCH) and a DMRS.

12. The method according to claim 1 , wherein the determining the target path loss value for the Sounding Reference Signal (SRS) resource in the SRS resource set according to the first uplink signal, the first downlink signal, the first beam, or the first beam pair link corresponding to the SRS resource set comprises: obtaining a second path loss value according to a receiving power of the first downlink signal and a transmission power of the first downlink signal; and determining the second path loss value as the target path loss value.

13. A terminal device, comprising: a processor; a memory; and a transceiver, wherein the processor, the memory and the transceiver are communicated with each other through internal connection paths, the processor is configured to: determine a target path loss value for a Sounding Reference Signal (SRS) resource in a SRS resource set according to a first uplink signal, a first downlink signal, a first beam, or a first beam pair link corresponding to the SRS resource set; and determine a target transmission power for the SRS resource in the SRS resource set according to the target path loss value; and the transceiver is configured to: transmit an SRS to a network device on the SRS resource in the SRS resource set according to the target transmission power.

14. The terminal device according to claim 13 , wherein the processor is further configured to: determine a same target path loss value for the SRS resources in the SRS resource set.

15. The terminal device according to claim 13 , wherein the processor is further configured to: determine the target path loss value for the SRS resource in the SRS resource set according to the same first uplink signal, the first downlink signal, the first beam, or the first beam pair link.

16. The terminal device according to claim 15 , wherein a number of the same first uplink signal, the first downlink signal, the first beam, or the first beam pair link is 1.

17. The terminal device according to claim 13 , wherein the processor is further configured to: determine a same target transmission power for the SRS resources in the SRS resource set.

18. The terminal device according to claim 13 , wherein the transceiver is further configured to: receive first indication information of the network device, wherein the first indication information is used to indicate the first uplink signal corresponding to the SRS resource set, the first downlink signal corresponding to the SRS resource set, the first beam corresponding to the SRS resource set, or the first beam pair link corresponding to the SRS resource set, or is used to indicate a resource for carrying the first uplink signal, a resource for carrying the first downlink signal, or a resource for receiving or transmitting a signal by using the first beam or the first beam pair link.

19. The terminal device according to claim 13 , wherein the processor is further configured to: determine the first uplink signal, the first downlink signal, the first beam, or the first beam pair link corresponding to the SRS resource set according to a first preset relationship.

20. The terminal device according to claim 13 , wherein the processor is further configured to: determine a path loss value used for calculating a transmission power of the first uplink signal as the target path loss value.

21. The terminal device according to claim 13 , wherein the processor is further configured to: determining the target path loss value by performing a downlink path loss estimation based on the first uplink signal, the first beam, or a second downlink signal associated with the first beam pair link.

22. The terminal device according to claim 21 , wherein the transceiver is further configured to: receive second indication information transmitted by the network device, wherein the second indication information is used to indicate an association relationship between the second downlink signal and one of following: the first uplink signal, the first beam, or the first beam pair link.

23. The terminal device according to claim 21 , wherein the processor is further configured to: determine a downlink signal associated with the first uplink signal, the first beam, or the first beam pair link as the second downlink signal according to a second preset relationship.

24. The terminal device according to claim 21 , wherein the processor is further configured to: obtain a first path loss value according to a receiving power of the second downlink signal and a transmission power of the second downlink signal; and determine the first path loss value as the target path loss value.

25. The terminal device according to claim 13 , wherein the first downlink signal comprises one of following: a CSI-RS, a synchronization signal, a synchronization signal block, a time-frequency Tracking Reference Signal (TRS), a Phase Tracking Reference Signal (PTRS), a Physical Downlink Shared Channel (PDSCH), a Physical Downlink Control Channel (PDCCH) and a DMRS.

26. The terminal device according to claim 13 , wherein the processor is further configured to: obtain a second path loss value according to a receiving power of the first downlink signal and a transmission power of the first downlink signal; and determine the second path loss value as the target path loss value.

27. The terminal device according to claim 13 , wherein the processor is further configured to: obtain an uplink path loss value according to the downlink path loss value; and determine the target transmission power according to the uplink path loss value.

28. The terminal device according to claim 13 , wherein the transceiver is further configured to: transmit the SRS to the network device using different transmission beams on different SRS resources in the SRS resource set respectively according to the target transmission power.

29. The terminal device according to claim 13 , wherein the SRS resource set is an SRS resource set for uplink beam management.

30. The terminal device according to claim 13 , wherein the SRS resource set is used to carry one of the following: a set of non-periodic SRS transmissions triggered by a non-periodic SRS trigger signaling; and a set of persistent SRS transmissions activated by a persistent SRS activation signaling.